Amazon.com : SKS Airchecker Digital Presta and Schrader Pressure Gauge : Bike Pack Accessories : Sports & Outdoors
Amazon.com : 2 Pack 24" Mountain Bike Tires 24 x 1.95/50-507 Plus 2 Pack 24" Bike Tubes 24x1.75/2.125 AV33mm Schrader Valve Compatible with 24x1.95 Mountain Bike Tire and Tubes (Black) : Sports & Outdoors